CHINA NATIONAL OFFSHORE OIL CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 789
 
  
 
B63B SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 434
 
  
 
E02B HYDRAULIC ENGINEERING 216
 
  
 
C09K MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR194
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 161
 
  
 
F16H GEARING199
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL169
 
  
 
G06G ANALOGUE COMPUTERS 152
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 1106

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9469957 Pneumatic load-transfer system and method for mating an integrated deck with a pre-installed platform substructureFeb 23, 14Oct 18, 16[E02B]
9404189 High temperature carbon dioxide corrosion inhibitorOct 29, 13Aug 02, 16[C09K, C23F]
9327805 Vertical oil storage system and its method for deepwater drilling and productionAug 06, 13May 03, 16[B63B, E21B]
9062429 Shallow water jacket installation methodAug 13, 13Jun 23, 15[E02B, B63B]
9032896 Grouting and welding combined connection joint applied to a deepwater floating type platform and an offshore installation method thereofMay 06, 14May 19, 15[F16L, B63B]
8899333 Submarine deviceJun 10, 08Dec 02, 14[E21B]
8733266 Integrative deep draft floating production platform with unconditional stability and offshore installation method thereofDec 02, 10May 27, 14[B63B]
8543364 Method for optimizing well production in reservoirs having flow barriersSep 17, 09Sep 24, 13[G06G]
8181588 Automatic reversing-reposition rocker armOct 25, 09May 22, 12[B63B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0136,400 Oil Recovery Process with Composition-Adjustable Multi-Component Thermal Fluid (MCTF)AbandonedJan 24, 14May 21, 15[E21B]
2015/0093,202 DEEPWATER JACKET DESIGN METHODAbandonedOct 01, 13Apr 02, 15[E02B, E02D]
2011/0311,794 BIODEGRADABLE COMPLEX OXYGEN BARRIER FILM AND APPLICATION THEREOFAbandonedJun 19, 09Dec 22, 11[B32B]
2007/0125,686 Method for processing oil sand bitumenAbandonedSep 19, 06Jun 07, 07[C10G]
6091669 Method of determining, displaying and using the relative changes of elastic modulus and density of underground rockExpiredSep 29, 98Jul 18, 00[G01V]

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